For the ultimate indoor golf experience, you might want to consider getting couple of these Floppy Indoor Golf Balls.
You can hit your 330-yard drives in your livingroom without any broken-windows. Now, just make sure your hands are not wet, otherwise you WILL have broken ceilings. (I have personally broke couple ceiling in my life)
The revolutionary indoor practice golf ball. Whether you want to practice your game at the office, or in your home. The Floppy® will give you the same feel and feedback of a golf ball but without the fear of damaging your property. Designed for the short game The Floppy works wonders with your wedges and short irons.